Experiments with Externally Prestressed Continuous Composite Girders

Excessive Long-Time Deflections of Prestressed Box Girders

The segmental prestressed concrete box girder of Koror-Babeldaob (KB) Bridge in Palau, which had the record span of 241 m (791 ft.), presents a striking paradigm of serviceability loss due to excessive multi-decade deflections. The data required for analysis have recently been released and are here exploited to show how the analysis and design could be improved. Erected segmentally in 1977, thi...

Performance of Self-consolidating Concrete in Prestressed Girders

Self-Compacting Concrete (SCC) for Prestressed Bridge Girders

Effects of Vertical Pre-Release Cracks on Prestressed Bridge Girders

Effects of Temperature Variations on Precast, Prestressed Concrete Bridge Girders

The monitoring of a precast, prestressed girder bridge during fabrication and service provided the opportunity to observe temperature variations and to evaluate the accuracy of calculated strains and cambers. The use of high curing temperatures during fabrication affects the level of prestress because the strand length is fixed during the heating, the coefficients of thermal expansion of steel ...